My experience with 3 different boats has not given any real answers, but maybe some facts for consideration. Our Angleman Sea Spirit: 34' on deck
rigged, full keel, 9 tons, ketch
rigged, 50' chain rode/9/16 rope
, clipper bow low windage. The boat rolls moderately at anchor, but does not sail.
40' Challenger: 40' on deck
, modified full keel, ketch rig, 13 tons, moderate to high windage, 50' chain/9/16"rope. Sails moderately, and rolls severely at anchor.
28' Norwegian double ender: Cutter
rigged, full keel, 8 tons, 50' chain, 9/16"rope, low windage. Does not sail at all, barely even need an anchor under 10 kts wind, and very little roll.
All are not using a riding sail, and with the Challenger I have tried to use the mizzen for this purpose with little improvement.
Now, for my question. As we have just purchased a trimaran
, and I have heard remarks about rolling at anchor, but how bad is it, and do moderate windage tris sail at anchor?
On the Challenger, the anchorages
around here are rolly enough, that the tea kettle has been launched on one occasion. I am hoping the tri will roll less, but with no balast, I would expect it to sail more.